Compound steam-trap.



No. 673,250. Patented Apr. 30, i901. T. P. FORD.

COMPOUND STEAM TRAP.

, (Application filed Jan. 16, 1901.)

(No Model.) 2 Sheets Shaet l.

z a M i P m w m m m V///A/A////A/ m A J m m m w I J llllllllll lilllllll WITNESSES No. 673,250. Patented Apr. 30, l90l. T. F. FORD.

COMPOUND STEAM TRAP. 4

(Application filed Jan. 16, 1901.) (No Model.) 2 SheetsShee\ 2.

llllllllll WITNESSES \l, l INVENTOH W! ifzamaarfir 7 A 77'0HNEYS UNITED STATES PATENT OFFICE.

THOMAS P. FORD, OF BROOKLYN, NEWV YORK.

COMPOUND STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 673,250, dated April 30, 1901.

Application filed January 16, 1901. Serial No. 43,440. (No model.)

T0 on whom it may concern:

Be it known that I, THOMAS P. FORD, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Com pound Steam-Trap, of which the following is a full,"

clear, and exact description.

The object of the invention is to provide a new and improved compound steam-trap which is simple and durable in construction arranged to readily accommodate and dispose of a small amount as well as sudden large amounts of water and at the same time permit convenient access to the working parts by the use of a separate pipe under the con- .1, and Fig. 3 is a similar view of the same on the line 3 3 in Fig. l.

A suitably-constructed casing A is provided with a base A, fastened by bolts or other suitable means to the casing proper, and on the under side of the base A isarranged an inlet B for the steam and water and an outlet 0 for the outflow of the water of condensation. The inlet 13 connects with a channel D, opening into the top of the casing A, as is plainly shown in the drawings, and the outlet 0 has a branch connection 0 with a cylinder E, secured or otherwise fastened to the base A and extending within the casing A. (See Fig. 1.) In the cylinder E are arranged the valves F and G, of which the valve F is a piston-valve and the valve G is a float-valve by having its stem G pivotally connected with the under side of a float H, adapted to rise and fall with the water in the casing A. The valve-stem G extends loosely through an opening E in the cap or head E of the cylinder E, and on the inside of the cap is arranged a valve-seat E adapted to be engaged by the top portion of the floatvalve G. The lower portion of this floatvalve is adapted to be seated on a seat F, held on the piston-valve F and opening to .a central bore F forming an auxiliary outlet, the lower end of which leads to the branch connection 0 of the main outlet 0. The lower end of the piston-valve F is normally seated on a seat E in the bottom of the cylinder E, and the side wall of the latter between the ends of the pistonvalve is formed with openings E connecting the interior of the cylinder E with the interior of the casing A. Normally the piston-valve F is on its seat E so that water cannot pass by way of the openings 11. to the outlet 0 unless the piston-valve F is moved ofi its seat in an upward direction at the time the valve G is against the seat E When small amounts of water accumulate in the casing A and the float H is caused to rise, then the float lifts the valve G off the seat F sufficiently to allow the accumulating water to flow through the opening E into the upper portion of the cylinder E, and then to the bore F into the branch connection 0, and to the outlet C.

In case a large amount of water suddenly against the piston-valve F within the cylinder E causes the said piston-valve Fto slide upward, whereby communication is established between the inside of the casing A and the outlet C by way of the openings E the uncovered seat E and the branch connection 0. Thus a large amount of water suddenly passed into the casing A can flow out in large quantities by 1 way of the connection described, and when the sudden inflow of water has been disposed of and the float H falls then the valve G" moves off its seat E and water again passes through the cap E into the upper end of the cylinder E, so that the piston-valve F is caused to move downward back to its former position-that is, to its seat within the casing A, then use is made of a by-pass J to connect the inlet B with the outlet G and at the same time to close the branch connection C, so that the casing A can be re-. moved from its base A.

A valve I is adapted to engage a valve-seat D at the connection between the inlet B and the channel D, (see Fig. 3,) and said valve I is also adapted to be seated on a seat J, leading to the by-pass J and connecting the inlet B with the outlet 0. The valve I has its stem 1 extending through a suitable stuifingbox to the outside of the base A, and on the outer end of the stem I is arranged a handwheel I to permit the operator to move the valve I from the seat J upon the seat D and close the channel D and to open the by-pass J and allow the water to flow from the inlet B by way of the by-pass to the outlet 0. A check-valve K is mounted to slide in a cylinder K, secured to the base A, the inner end of the check-valve being adapted to be seated on a valve-seat L, arranged between theoutlet O and its branch connections E. Apertures K lead to the outer end of the cylinder K, so that when the .valve I is moved from its seat J upon the seat D and the water passes through the by-pass J then the water flowing through the apertures K into the cylinder K causes the check-valve K to move transversely and finally engage the seat L to close the branch connection 0. Now it will be seen that the channelD as well as the branch connection 0 are closed and water can directly flow from the inlet B by way of the by-pass J to the outlet 0.

When the several parts are in the position mentioned, the casing A can be conveniently removed from the base A without disturbing the connection of the latter with the inflow and outlet, and at the same time permitting the operator to examine, remove, and repair the cylinder E and the parts contained therein or connected therewith.

As shown, the device is arranged as a closed float; but, if desired, it can be arranged as an open float to receive the incoming water.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent 7 for controllin the outflow of the water from the trap one o 'the valves controlling small amounts of water passing into the trap and the other controlling sudden inrushes of large amounts of water into the trap, the latter valve being opened and closed solely by the pressure of the fluid as set forth.

2. A steam-trap having a main valve and an auxiliary valve for controlling the outflow of the water from the trap, the auxiliary Valve being float -operated and controlling small amounts of water passing into the trap and the main valve being opened and closed by fluid-pressure and controlling sudden inrushes of large amounts of water into the trap, as set forth.

3. A steam-trap having a piston-valve normally closing the'main outlet of the trap, and a float-valve controlling an auxiliary outlet in said piston-valve, so that small amounts of water are discharged by way of said auxiliary outlet the said piston-valve being automatically moved off its seat by the pressure of the fluid when a large amount of water suddenly enters the trap, thereby allowing of the discharge of large amounts of water by the main outlet, as set forth. V

4. A steam-trap having an auxiliary outlet, a float-valve controlling said auxiliary outlet and the inlet to said outlet, as set forth.

5. A steam-trap having a main and an auxiliary outlet, a valve controlling the said auxiliary outlet and the inlet to said outlet, and a valve controlling the main outlet, as set forth.

6. A steam-trap, comprising a casing having a main inlet and a main outlet, a pistonvalve normally closing the main outlet, and a float-valve controlling an auxiliary outlet in said piston-valve, so that small amounts of water are discharged with the piston-valve auxiliary outlet and sudden large-amounts of water are discharged through the main outlet, opened by the piston-valve, as set forth.

7. A steam-trap, comprising a piston-valve in the main outlet, and having an auxiliary outlet, and a float-valve controlling said auxiliary outlet and the inlet to said auxiliary outlet, as set forth.

8. A steam-trap having a cylinder opening atone end into the main outlet and opening at the other end into the trap-casing, a piston-valve in said cylinder and normally held in a closed position, to disconnect the cylinder from the main' outlet, and a float-valve adapted to be seated on said auxiliary valve, to close an auxiliary outlet therein, said floatvalve also controlling the upper inlet to said cylinder, as set forth.

9. A steam-trap having a cylinder opening at its lower end into the main outlet and having a head at its upper end provided with an opening and having a valve-seat on the inside of the head, a float-valve arranged within the cylinder and adapted to engage with its x top portion the said valve-seat, the stem of 1. A steam-trap having a plurality of valves the valve extending loosely through the opening in the head of the cylinder and connected with a float arranged within the trap-casing, and a piston-valve arranged Within the cylinder and having a central bore, the lower end of the piston-valve normallyengaging a seat in the bottom of the cylinder to close the outlot, and the upper end of said piston-valve having a seat adapted to be engaged by the lower portion of the float-valve, the side wall of the cylinder being provided with openings connecting the interior of the cylinder with the interior of the trap-casing, as set forth.

10. A steam-trap comprising a casing having a main inlet, and a main outlet, the main inlet connecting with a channel opening into the upper part of the casing, a cylinder in said casing and opening at its lower end into a branch outlet connected with the main outlet, a valve in said cylinder and normally closing the said outlet, and a valve adapted to control an auxiliary outlet and the inlet to the same, as set forth.

11. A steam-trap having a casing, an outlet having connection with said casing, a checkvalve in the outlet, a by-pass leading from the inlet of the trap to the outlet, and a valve under control of the operator, for controlling the by-pass between the check-valve and the inlet, so that when the by-pass is opened the check-valve closes the connection between the outlet and the casing, as set forth.

12. A steam-trap, comprising a casing having an outlet and an inlet, a by-pass leading from the inlet to the outlet, a valve under control of the operator, and adapted to close the connection between the inlet and the casing, the said valve normally closing said bypass, a check-valve adapted to close the connection between the casing and the outlet, and a cylinder in which said check-valve is mounted to slide, the said cylinder being provided with apertures leading to one end there of, whereby when the by-pass is opened the checkvalve closes the connection between the outlet and the casing as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS P.FORD.

Witnesses:

THEO. G. HOSTER, EVERARD BOLTON MARSHALL. 

